One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,11)(6,9)(7,12)(8,10)(13,16)(14,15)(17,18,21,25,22,19,23,27)(20,26,29,32,28,24,30,31)(1,3,10,9,6,8,5,2)(4,11,12,16,14,15,13,7)(17,19,21,27,22,18,23,25)(20,26,30,31,28,24,29,32)(1,4,6,14)(2,7,9,16)(3,11,8,15)(5,13,10,12)(17,20)(18,24)(19,26)(21,30)(22,28)(23,29)(25,32)(27,31)(1,5,6,10)(2,3,9,8)(4,12,14,13)(7,15,16,11)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.